Tagetes erecta

It is a herbaceous annual or perennial plant whose height ranges from 30–110 cm. The root is cylindrical, pivoting, with a fibrous and shallow branching system. The stem is striated, sometimes ridged, smooth or slightly with villi, cylindrical, oval and herbaceous to slightly woody, with resin channels in the bark, which are aromatic when squeezed. Opposite leaves at the bottom alternate at the top, up to 20 cm long, pinnate, composed of 11 to 17 leaflets, lanceolate to linear-lanceolate, up to 5 cm long and 1.5 cm wide, acute to acuminate, serrated to sub-holders, the lower ones of each leaf frequently setiform (in the form of threads), the superiors are sometimes completely setiform; with abundant round glands.[10]

The main characteristic of the flowers is that they are grouped in small heads or in solitary inflorescences, on peduncles up to 15 cm long, they are liguladas of yellow colors to red. In the flowers of the disc: 150 to 250 in the simple heads, in the doubles it shows different degrees of transformation in ligules, yellow to orange corollas, of 8 to 10 mm in length. The fruits and seeds are: linear achenes 7 to 10 mm long, smooth or slightly covered with stiff hairs at the corners. It has a long flowering period extending throughout the summer and fall. It reproduces easily by seeds.[11]

Although native to Mexico, they are also found in the countries of Central America and the Caribbean: Belize, Bolivia, Colombia, Costa Rica, Cuba, Ecuador, El Salvador, Guatemala, Guyana, Honduras, Jamaica, Nicaragua, Panama, Puerto Rico, and Venezuela.[12]

In their wild form they are found in the Balsas basin and western Mexico and live in diverse types of ecosystems, such as tropical deciduous forests, thorny forests, cloud forests and pine-oak forests. In the wild, it is found as a getaway in heavily disturbed places at altitudes of 800–2300 m.[13]

As an introduced species (cultivated) it can be found in China, India, Zambia, Zimbabwe, South Africa and Australia.

Botanical illustration.

The archaeological record of the use of Tagetes erecta among pre-Hispanic civilizations is not as abundant as in the case of other species of the same family. For example, it has been possible to establish the ceremonial use among the Mexica of T. lucida as an aromatic plant, which they called yauhtli, through the chemical analysis of the incense burners found in the remains of the Templo Mayor in Mexico City.[14] The Nahuatl term cempoalxóchitl, was used to refer to several species of flowers, which includes T. erecta, T. lucida, T. patula, T. lunulata, T. tenuifolia, T. peduncularis and T. elongata. This complicates the differentiation of one species and another when such a term is used, however, it appears that T. erecta was primarily named by this term.

The identification of T. erecta as some flowers represented in Aztec art, such as those seen in the Coyolxauhqui monolith, as part of the goddess's headdress, has been proposed as a symbol of her sovereignty or her death. They are part of the necklace that a plant deity wears in a vase found in the Templo Mayor, although it could also be T. patula. With the arrival of the Spaniards in Mexico, the documentary record of the ceremonial and medicinal use of T. erecta increased in which the flower is described by Bernardino de Sahagún as:[15]

These flowers are called Cempoalxóchitl; they are yellow and of good smell, and wide and beautiful, that they are born, and others that sow them in the orchards; They are in two ways, some they call females Cempoalxóchitl and they are big and beautiful, and others that are called Cempoalxóchitl males are not so beautiful or so big.

Sahagún also describes, in the same work, that the plant had a role in the rituals of the religious festival Mexica of the month Teculhuitontli, where the goddess of salt Huixtocíhuatl, whose color was yellow, was celebrated and who offered herself as sacrifice a woman. In the work of the physician Francisco Hernández, it is described that the name cempoalxóchitl received at least seven types of flowers, noting that the term properly described the largest of them and that the Spaniards called it carnation of Indian, also lists its medical properties.[16]

It is widely cultivated and there are many cultivars used in gardening as an ornamental plant. The cultivar 'Inca Orange' has gained the Royal Horticultural Society's Award of Garden Merit.[17][18]

In Mexico, it is used in the festivities of the Day of the Dead, to decorate altars and tombs; hence the name "flower of the dead". However, since antiquity it is also used for food and medicinal purposes.

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  Mexican marigolds (orange, center) in Tepoztlán, Morelos
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  Bud of Tagetes erecta in India
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  Flower
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  French marigold flower
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  Flowerbed
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  Sprouting flowers
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  Flower

Media related to Tagetes erecta at Wikimedia Commons